Jitendra Z. Profile

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5,0

(16 comentarios)

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$30 USD / hora

ahmedabad,

india

$30 USD / hora

Aquí son las 2:15 p. m.

Se unió el octubre 30, 2018

2 recomendaciones

Jitendra Z.

@jitendracf

5,0

(16 comentarios)

5,6

100%

$30 USD / hora

ahmedabad,

india

$30 USD / hora

100 %

Trabajos finalizados

100 %

Dentro del presupuesto

100 %

A tiempo

21 %

Tasa de recontratación

Embedded | Firmware | PCB | IoT | BLE | WiFi | GPS

12+ years of experience in embedded products design and development. Key skills: • Hardware Design • Firmware development • Wireless Technologies Expert (IoT products development using WiFi(2.4GHz, 5GHz, 6GHz), BLE, Cellular(2G/3G/4G/LTE,NB-IOT), GPS/GNSS, ZigBee, LoRa, UWB etc.) Embedded Systems Expertise: • PCB design upto Six Layers • Altium Designer, Cadsoft Eagle, Kicad • Requirement analysis and research • Firmware development on micro-controllers/microprocessors • Micro-controllers/processors • Wireless drivers and applications for WiFi, RF, BLE, GSM/GPS, LTE, NB-IOT, RFID, NFC, LoRa • Hands on experience on I2C, SPI, UART/USART, RS232, RS485, CAN, TCP/IP, J1772 • IOT product development • Hands on experience using Raspberry Pi zero/2/3/4 • Sensors integration • Vehicle Health System using OBD-II • Embedded C, C++, Python and Shell Scripting • Windows, Linux, TI-RTOS, TI-SIMPLELINK, Free RTOS, Zephyr RTOS, AWS Free RTOS • Microvision Keil, Code Composer Studio, IAR Workbench for 8051 and ARM, Avr Studio, MPLABx IDE, nRF Studio, Arduino IDE, Segger Embedded Studio, Simplicity studio, VS Code • Hands on development experience in Arduino, ESP-IDF, NRF Connect SDK, TI BLE SDK etc. • BLE and Wi-Fi based products development Wireless Socs Experience: • CC2530, CC2540,CC2541, CC2640,CC2650, CC2640R2F, CC430, CC1100, CC1101 • nRF51822,nRF51844, nRF52832,nRF52840,nRF9160,nRF52810, nRF52820, nRF5340, nRF52833 • nRF905, BL600, CSR8670 • CC3100, CC3200 • ESP8266-EX, ESP32-S2, ESP32-S3,ESP32-C6 Sensors Integration and Peripherals Experience : • Infrared sensor, Proximity sensor • Temperature sensor, Humidity sensor, Pressure sensor • Accelerometer, Gyroscope • CO2 sensor, Soil moisture sensor, Loadcell sensor • Heart rate sensor • Matrix Keypad, Dot-matrix Display, LCD, OLED display, TFT display • Water Flow sensor • Light sensor • Occupancy sensor Evaluation Boards Experience : • Raspberry Pi Zero/2/3/4 • Beaglebone black • Olinuxino A10 • STM32F discovery board • PIC32F development board • CC2640R2F EVM, CC2650 EVM • Firefly RK3288 development board • Arduino Uno, Atmega256 development board • ESP32-WROOM Development Kit, ESP12F development kit, Argon Development board, nRF52832-DK, nRF52833-DK, nRF52840-DK, ESP32-S3 Dev Kit

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Portafolio

The main function of this project was to control appliances using capacitive touch buttons and send status to server using MQTT over WiFi(ESP32). The board is powered from 230V AC and all the appliances are rated 210-240 V AC,20 Amps.There are three PCBs stack to reduce form factor of device. Dimension was 40mm x 40mm.

4 Gang Switch

This PCB has been designed to control compressor automatically. It has capability to get outer temperature data in form of ADC , and operate(turn ON/OFF) compressor based on temperature readings. There are LED indication for compressor running status with inputs.

Automatic Compressor Controller

It is an Embedded Solution which can be used with PLC device to convert its editable test reports (i.e. csv files) to non-editable test reports(i.e. pdf etc.) with proper formats.
- Raspberry PI acts as an access point. It has its own web server with rich GUI and gives user friendly interface.
- User can connect to access point and download non editable reports using GUI.
- Device also takes backup of reports automatically and gives indication on memory exceptions.

PLC Data Report Generation - Wireless

- Webserver is the product which would monitor and control your remote units/ equipmentsusing web interface.
- Webserver is an advanced yet simplified Remote Terminal Unit and running inside a simple microcontroller.
- Taking advantage of the reliable, internet, webserver device becomes a remotely accessible unit from any part of the world.
- Webserver device comprised of Microchip TCP/IP stack and in addition it also contains a Modbus TCP server.
- The inputs present on Webserver device can be used for monitoring of external devices or connecting sensors (digital).
- Alarm conditions can be configured using a simple web interface for monitoring of these inputs.
- Webserver also gives you the freedom to control the states of the connected outputs using web browser.
- IDE Used : Mplab X IDE

Webserver - Monitoring and Control

This is an Internet of Things (IOT) where a microcontroller device was interfaced with multiple sensors like temperature, water level, humidity etc.
-The controller module has a 3G GSM module interfaced which provides the high speed internet connectivity. Controller will collect the data from sensors and upload all the data to cloud.
-Cloud is a live server which collects data from different controllers which are on the field. Cloud provides functionality to view the data on charts, tables, sorting of data, alert system, device configuration.
-It has a Bluetooth connectivity over which it can communicate with a mobile device for troubleshooting and configuration.
I have designed complete prototype which includes:
- Component selection
- Schematic and pcb layout design
- Firmware development
EDA Tool: Cadsoft eagle
IDE: MPLabx, IAR Workbench for 8051

Smart Data Logger

The main objective of this product was to build smart OBD (On-Board Diagnostic) device which can be used in automobile industry. This is a step for autmobile industry towards IOT. This device comprises of:
-MCU - communicate with car on CAN Bus and gathers car's health i.e. engine temperature, speed, torque, oxygen sensor data, fuel data, pressure data and many more..
- Bluetooth - communicate with mobile app to send car's data
- GSM - to send data to servers using http
- GPS - to get car's real-time location
- SD card - to store data offline in csv
I have developed this prototype from component selections to pcb layout and firmware development.
EDA Tools: Cadsoft eagle and Altium Desinger, Gerbview
IDE: MPLab X, Code composer studio

OBD-II device with BLE, GPS and GSM

4 Gang Switch

Automatic Compressor Controller

PLC Data Report Generation - Wireless

Webserver - Monitoring and Control

Smart Data Logger

OBD-II device with BLE, GPS and GSM

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5,0

₹2.000,00 INR

ESP32 Program

Jitendra is good at this work. Definitely recommended and work for my future projects.

C Programming

C++ Programming

Ajay Ramprasad M.

@indigilog1

•

hace 4 meses

5,0

$200,00 USD

ATMEGA328PB with GPS

An absolute pleasure working with Jitendra. Highly professional and communicates constantly progress. I look forward to working with him again.

Electronics

Microcontroller

Arduino

Robert C.

@robert384

•

hace 3 años

5,0

€200,00 EUR

Project for Jitendra Z.

Jitendra work very well, I recommande for all people. He is a good professional and polite. Sure we work more toghether.

C Programming

Electronics

Microcontroller

Electrical Engineering

+1 más

Manel R.

@manel87

•

hace 4 años

5,0

£120,00 GBP

Fix an Arduino Library

Excellent freelancer, worked very quickly and efficiently. He claimed to understand the issue when he bid, he was absolutely spot on and fixed all my issues without a hitch - would hire again for sure

C Programming

Electronics

Microcontroller

Electrical Engineering

Arduino

Josh E.

@Joshmeasurable

•

hace 4 años

5,0

$650,00 USD

CCTALK Circuit Design and PCB layout

Jitendra is very professional and produced high quality work. I would highly recommend him and will be using him for future projects.

Electronics

Microcontroller

Electrical Engineering

PCB Layout

Circuit Design

Jeff K.

@questinfo2

•

hace 4 años

Experiencia

CoreFragment Technologies Pvt Ltd

jul 2015 - Presente

Responsibilities: - Client Handling - Client Communication - Requirement Understanding - Team management - Project Execution (Hardware Design) - Firmware Development if required.